EP0432174A1 - Dispositif de reglage de soupape a deux voies de gaz - Google Patents

Dispositif de reglage de soupape a deux voies de gaz

Info

Publication number
EP0432174A1
EP0432174A1 EP89908803A EP89908803A EP0432174A1 EP 0432174 A1 EP0432174 A1 EP 0432174A1 EP 89908803 A EP89908803 A EP 89908803A EP 89908803 A EP89908803 A EP 89908803A EP 0432174 A1 EP0432174 A1 EP 0432174A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
anchor plate
plate
armature plate
actuating device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP89908803A
Other languages
German (de)
English (en)
Inventor
Peter Kreuter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Audi AG
Original Assignee
Audi AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Audi AG filed Critical Audi AG
Publication of EP0432174A1 publication Critical patent/EP0432174A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/16—Silencing impact; Reducing wear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means

Definitions

  • the invention relates to an actuating device for a gas exchange valve according to the preamble of claim 1.
  • Such an actuator is known for example from DE-OS 30 24 109.
  • An armature plate which can be moved back and forth between two opposing magnets presses the gas exchange valve of an internal combustion engine into its open position in one position and is assigned to the closed position of the gas exchange valve in its other position.
  • the magnets hold the anchor plate firmly in their end positions.
  • B. a Feder ⁇ y ⁇ tem the anchor plate in the direction of the waste from the pole face.
  • the opposite pole face is then energized and captures the armature plate which swings between the two end positions. This results in an impact on the pole faces and a corresponding mechanical noise.
  • the object of the invention is to reduce the impact noise.
  • the space located between the armature plate and the pole poles of the magnet coils, which are spaced apart, is sealed, so that when the armature plate approaches the pole surface, the volume in the chamber decreases and the pressure thus increases of the enclosed fluid builds up a cushion that serves for damping.
  • Throttle bores can be provided which break down the fluid cushion between the armature plate surface and the pole surface in a defined manner.
  • FIG. 1 shows a view of the system according to the invention, partly in section
  • FIG. 2 shows a detail from FIG. 1, showing a further embodiment of the invention.
  • Fig. 1 the actuator for a gas exchange valve is provided. It has a U-shaped core 10 for a pot magnet 12 and, opposite, a U-shaped core 14 for a pot magnet 16. The two pole faces of the magnets 12 and 16 lie opposite one another. An anchor plate 18 can be moved back and forth between them.
  • the pot magnet 10 has a cylindrical bore inside, into which a sleeve 20 which is integrally connected to the anchor plate 18 leads.
  • the opposite pot magnet 16 surrounds a cylindrical opening, into which a projection 30 of the anchor plate 18 projects.
  • Both sleeve 20 and extension 30 are at a short distance from the walls of the cores 10 and 14 of the pot magnets, which are U-shaped in cross section.
  • the extension 30 of the anchor plate 18 presses on a plunger 32, which forms the stem of a gas exchange valve, which is not shown.
  • the dead center or equilibrium state of the system when the magnet is not excited is centered between the opposing magnets 12 and 16.
  • the space between the pole faces of the magnets 10, 12 on one side and 14, 16 on the other side is sealed laterally by a cylindrical sleeve 38, so that a closed chamber is formed.
  • This chamber is divided by the anchor plate 18 into an upper chamber 50 and a lower chamber 52. Due to the close guidance of the sleeve 20 in the cylindrical opening formed by the magnets 10, 12, no fluid can escape from the upper chamber 50 into this area, due to the close guidance of the cylindrical extension in the cylindrical opening through the magnet 14 , 16 is formed, no appreciable amount of fluid can escape into the area from the lower chamber 52.
  • the chambers 50 and 52 thus enclose fluid and when the anchor plate 18 is moved back and forth from the upper to the lower position and vice versa, fluid is exchanged between the chambers 50 and 52.
  • the armature plate lies circumferentially sealingly against the sleeve 38.
  • a groove 34 can be formed on the circumference of the anchor plate 18, into which a sealing or piston ring 36 is inserted.
  • a nose can also be provided on the circumference of the anchor plate 18, which seals against the inner circumferential wall of the sleeve 38.
  • throttle holes 44 can be provided in the anchor plate through which Fluid can flow between the chambers 50 and 52.
  • overflow openings 42 are provided, for example in the form of holes in the sleeve 38, these holes, of course, to the outside must be sealed off. This means that fluid can flow outside over the middle area of the path of the armature plate when it comes from the contact to the pole faces of the one magnet to the contact to the pole face of the other magnet, and only in the end area of the path covered.
  • the sealing edge 36 or 40 has reached the upper or lower edge of the hole 42, there is no further flow around, and the last part of the way shortly before the armature plate 18 hits the pole face is pressed together by the then Fluid damped.
  • the armature plate 18 In operation, the armature plate 18 is moved back and forth by the mutual excitation of the magnets 12 and 16 and the action by the springs 22 and 24, the resistance due to fluid displacement being supposed to be low over a large area of the path.
  • the overflow openings 42 are provided, which enable an exchange of the fluid between the chambers 50 and 52. Only when about 80% to 90% of the total distance has been covered does the overflow opening close, since the sealing edge 36 or 40 has reached the outer edge of the overflow opening, and a fluid exchange between the chambers 50 and 52 is only possible if necessary. provided holes 44 possible in the anchor plate.
  • the fluid contained in the chamber which is constantly decreasing in volume, can only leak through the seals 40 or in the gaps formed by tolerance between the sleeve 20 and the inner circumference of the magnetic core 10 or through the Gaps between the extension 30 and the inner circumference of the core 14 escape.
  • the armature plate 18 strikes the pole faces of the magnets 10, 12 or 14, 16 a fluid cushion which strongly dampens the impact and thus contributes to noise reduction.
  • the fluid trapped in the chambers 50 and 52 can be air, but oil damping is also conceivable. If an oil mist is used for lubrication, the medium in the chamber is made up of air and oil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valve Device For Special Equipments (AREA)
  • Electromagnets (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

Afin d'amortir le bruit causé par l'impact de la plaque d'induit sur les faces polaires des aimants dans un dispositif de réglage de soupape à deux voies de gaz pour moteurs à combustion interne, une chambre fermée est pourvue d'une bague d'étanchéité, de façon à former un coussin fluide.
EP89908803A 1988-08-09 1989-07-28 Dispositif de reglage de soupape a deux voies de gaz Pending EP0432174A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3826974A DE3826974A1 (de) 1988-08-09 1988-08-09 Stelleinrichtung fuer ein gaswechselventil
DE3826974 1988-08-09

Publications (1)

Publication Number Publication Date
EP0432174A1 true EP0432174A1 (fr) 1991-06-19

Family

ID=6360497

Family Applications (2)

Application Number Title Priority Date Filing Date
EP89113912A Expired - Lifetime EP0354417B1 (fr) 1988-08-09 1989-07-28 Dispositif de positionnement pour une soupape d'échange gazeux
EP89908803A Pending EP0432174A1 (fr) 1988-08-09 1989-07-28 Dispositif de reglage de soupape a deux voies de gaz

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP89113912A Expired - Lifetime EP0354417B1 (fr) 1988-08-09 1989-07-28 Dispositif de positionnement pour une soupape d'échange gazeux

Country Status (6)

Country Link
US (1) US5223812A (fr)
EP (2) EP0354417B1 (fr)
JP (1) JP2656360B2 (fr)
DE (2) DE3826974A1 (fr)
ES (1) ES2031319T3 (fr)
WO (1) WO1990001616A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1255447B (it) * 1991-11-08 1995-10-31 Iveco Fiat Motore provvisto di un dispositivo di frenatura continua, particolarmente per un veicolo industriale.
US5365210A (en) * 1993-09-21 1994-11-15 Alliedsignal Inc. Latching solenoid with manual override
GB9326245D0 (en) * 1993-12-23 1994-02-23 Perkins Ltd An improved method for operating a two coil solenoid valve and control circuitry therefor
US5716312A (en) * 1996-01-16 1998-02-10 Kristel; Ira B. Vacuum cylinder
DE29615396U1 (de) * 1996-09-04 1998-01-08 Fev Motorentech Gmbh & Co Kg Elektromagnetischer Aktuator mit Aufschlagdämpfung
US5878704A (en) * 1997-01-04 1999-03-09 Fev Motorentechnik Gmbh & Co. Kg Electromagnetic actuator, including sound muffling means, for operating a cylinder valve
EP0870906B1 (fr) 1997-04-08 2002-06-12 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Vérin électromagnétique pour la commande d'une soupape de distribution des gaz d'un moteur à combustion interne
DE19835402C1 (de) * 1998-08-05 2000-02-10 Meta Motoren Energietech Elektromagnetisch arbeitende Vorrichtung zum Betätigen eines Ventils
JP3921311B2 (ja) * 1998-10-30 2007-05-30 株式会社日立製作所 機関弁の電磁駆動装置
DE19905176A1 (de) * 1999-02-09 2000-08-10 Fev Motorentech Gmbh Elektromagnetischer Aktuator mit Luftdämpfungselement
US6572074B2 (en) * 2001-04-18 2003-06-03 Ford Global Technologies, Llc Electromechanical valve actuator with air piston to aid in soft landing
US6817592B2 (en) * 2001-12-11 2004-11-16 Visteon Global Technologies, Inc. Electromagnetic valve actuator with soft-seating
DE102005026415A1 (de) * 2005-06-03 2006-12-07 Siemens Ag Elektromagnetische Antriebseinrichtung
US7871058B2 (en) * 2007-07-25 2011-01-18 Illinois Tool Works Inc. Dual inline solenoid-actuated hot melt adhesive dispensing valve assembly
CN112412567B (zh) * 2020-10-12 2021-09-07 绵阳富临精工机械股份有限公司 一种凸轮移位电磁执行器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738337A (en) * 1971-12-30 1973-06-12 P Massie Electrically operated hydraulic valve particularly adapted for pollution-free electronically controlled internal combustion engine
DE3024109A1 (de) * 1980-06-27 1982-01-21 Pischinger, Franz, Prof. Dipl.-Ing. Dr.Techn., 5100 Aachen Elektromagnetisch arbeitende stelleinrichtung
DE3311250C2 (de) 1983-03-28 1985-08-01 FEV Forschungsgesellschaft für Energietechnik und Verbrennungsmotoren mbH, 5100 Aachen Vorrichtung zur elektromagnetischen Betätigung eines Gaswechselventils für Verdrängungsmaschinen
DE3513106A1 (de) * 1985-04-12 1986-10-16 Fleck, Andreas, 2000 Hamburg Elektromagnetisch arbeitende stelleinrichtung
US4794890A (en) * 1987-03-03 1989-01-03 Magnavox Government And Industrial Electronics Company Electromagnetic valve actuator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9001616A1 *

Also Published As

Publication number Publication date
ES2031319T3 (es) 1992-12-01
JPH04502192A (ja) 1992-04-16
EP0354417B1 (fr) 1992-05-06
WO1990001616A1 (fr) 1990-02-22
EP0354417A1 (fr) 1990-02-14
DE58901320D1 (de) 1992-06-11
US5223812A (en) 1993-06-29
JP2656360B2 (ja) 1997-09-24
DE3826974A1 (de) 1990-02-15

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Free format text: VERFAHREN ABGESCHLOSSEN INFOLGE VERBINDUNG MIT 89113912.3/0354417 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) VOM 24.09.91.